It seems to get easier...
I struggled for a while trying to save enough DE, but it has gotten easier. I reached TH8 on October 9 with my BK at level 5, and got my BK to level 10 on November 26. Then I decided to save up to upgrade Golems to level 2 while I was in the process of upgrading my PEKKA, and I actually filled my DE storage (80,000) before my lab was available.
I have my TH way out in the corner, and my DE storage dead-center in my base. I do get zapped occasionally, but much less than I expected. I don't break my shield very often, and I try to get a good, long raiding session in, but more often than not, when I do get attacked, I get TH sniped.
My Golem upgrade finishes today, and I have over 50,000 DE; I'm going to start Hog Riders level 3 upgrade this evening.
I have spent most of my time between 1700 and 2000 trophies. I am perfectly happy to zap for DE myself, if I can get more than about 600 DE for my three lightning spells.